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THE DAILY BRIEF
MONDAY, JUNE 22, 2026
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■ TOP STORY
A critical remote code execution vulnerability in protobuf.js, Google's widely used JavaScript implementation of Protocol Buffers, now has public exploit code available. This affects any application using the library to parse untrusted data.
► WHY IT MATTERS: Protobuf is foundational infrastructure across web services, making this an immediate supply-chain risk for thousands of production applications.
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Threat actors are actively exploiting three recently disclosed Windows security vulnerabilities to gain SYSTEM-level and elevated administrator permissions on compromised systems.
► This marks the transition from disclosure to weaponization, creating an urgent patching window before widespread compromise accelerates.
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Socket identified a supply chain attack affecting npm packages for Mistral, UiPath, TanStack (including react-router), and others, likely part of the Mini Shai-Hulud campaign. Developers are advised to run shasum checks on router_init.js files across their dependencies.
► React-router's massive adoption means this attack potentially affects millions of end-user applications if malicious versions were installed.
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Anthropic CEO Dario Amodei is scheduled to meet with White House Chief of Staff Susie Wiles on Friday in what sources describe as a breakthrough in Anthropic's ongoing dispute with the Pentagon over AI policy and regulation.
► Direct executive-level engagement with the Trump administration signals AI policy disputes are escalating from boardrooms to the highest levels of government.
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Google has successfully enabled end-to-end encryption for RCS texting between Android and iPhone users, resolving years of fragmented cross-platform communication after repeated calls from Google for Apple to adopt RCS standards.
► This closes a long-standing security gap affecting billions of daily messages between the world's two largest phone platforms.
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